The book was written in 1946, the education system has witnessed great charges.
A．when B．during which
C．since then D．since when
In this seaside resort, you can all the comfort and convenience of modern tourism.
A．enjoy B．apply
C．receive D．achieve
The country has already sent up three unmanned spacecraft, the most recent at the end of last March.
A．has been launched B．having been launched
C．being launched D．to be launched
They two free tickets to Canada, otherwise they’d never have been able to afford to go.
A．had got B．got C．have got D．get
It is not socially for parents to leave children unattended at that age.
A．accessible B．adorable
C．adaptable D．acceptable
---Where did you get to know her?
---It was on the farm we worked.
A．that B．there
C．which D．where
